Method of manufacturing slide fasteners

Details Method of manufacturing slide fasteners Method of manufacturing slide fasteners

1978-06-19

1980-03-04

Combs, Ervin M.

Metal working

Method of mechanical manufacture

Of a slide fastener

29 332, B23P 1100

Patent

active

041909445

ABSTRACT:
A pair of continuous slide fastener stringers having a pair of stringer tapes including thermoplastic synthetic fibers and a pair of interengaged rows of fastener elements mounted on the confronting edges of the stringer tapes are provided with an element-free gap therein and are cut off transversely of the element-free gap to produce an individual slide fastener length at a first station with ultrasonic processing means. Simultaneously, the cut edges and ends are fused and a top end stop is mounted on the slide fastener length with heat induced by the ultrasonic processing means. While advancing from the first station, the element rows are separated and introduced into a slider through its throats which is supported on a slider holder. Upon arrival at a second station of the fastener stringers with the elements rows emerging from the slider mouth interengated, a bottom end stop is mounted on the fastener stringers across the coupled rows of fastener elements.

REFERENCES:
patent: 2219165 (1940-10-01), Nedal
patent: 3190779 (1965-06-01), Porepp
patent: 3340594 (1967-09-01), Frohlich et al.
patent: 3485691 (1969-12-01), Waldes
patent: 4074413 (1978-02-01), Taccani
patent: 4110890 (1978-09-01), Akashi

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